<template>
	<view class="my-settle-container">
		<label class="radio" @click="changeAllState">
			<radio color="#c00000" :checked="isFullChecked" /><text>全选</text>
		</label>

		<view class="amount-box">
			合计: <text class="amount">￥{{ priceCount }}</text>
		</view>

		<view class="btn-settle" @click="settlement">结算({{ checkedCount }})</view>
	</view>
</template>

<script>
	import {
		mapGetters,
		mapMutations,
		mapState
	} from 'vuex'
	export default {
		name: "my-settle",
		computed: {
			...mapGetters('m_cart', ['checkedCount', 'priceCount', 'total']),
			...mapGetters('m_user', ['addStr']),
			...mapState('m_user', ['token']),
			...mapState('m_cart', ['cart']),
			isFullChecked() {
				return this.checkedCount === this.total
			}
		},
		data() {
			return {
				seconds: 3,
				timer: null
			}
		},
		methods: {
			...mapMutations('m_cart', ['updateAllGoodsState']),
			...mapMutations('m_user', ['updateRedirectInfo']),
			changeAllState() {
				this.updateAllGoodsState(!this.isFullChecked)
			},
			// 点击结算
			settlement() {
				if (!this.checkedCount) {
					return uni.$showMsg('请选择要结算的商品!')
				}
				if (!this.addStr) {
					return uni.$showMsg('请选择收货地址!')
				}
				if (!this.token) {
					return this.delayNavigate()
				}
				this.payOrder()
			},
			// 展示倒计时的提示消息
			showTips(n) {
				uni.showToast({
					icon: 'none',
					title: '请登录后再结算!' + n + '秒之后自动跳转到登录页',
					mask: true,
					duration: 1500
				})
			},
			// 延时导航
			delayNavigate() {
				this.showTips(this.seconds)

				this.timer = setInterval(() => {
					if (this.seconds <= 0) {
						clearInterval(this.timer)
						this.seconds = 3
						return uni.switchTab({
							url: '/pages/my/my',
							success: () => {
								// 调用 vuex 的 updateRedirectInfo 方法，把跳转信息存储到 Store 中
								this.updateRedirectInfo({
									// 跳转的方式
									openType: 'switchTab',
									// 从哪个页面跳转过去的
									from: '/pages/cart/cart'
								})
							}
						})
					}
					this.seconds--
					this.showTips(this.seconds)
				}, 1000)
			},
			async payOrder() {
				const orderInfo = {
					// 开发期间，注释掉真实的订单价格，
					// order_price: this.checkedGoodsAmount,
					// 写死订单总价为 1 分钱
					order_price: 0.01,
					consignee_addr: this.addStr,
					goods: this.cart.filter(x => x.goods_state).map(x => ({
						goods_id: x.goods_id,
						goods_number: x.goods_count,
						goods_price: x.goods_price
					}))
				}
				const {
					data: res
				} = await uni.$http.post('/api/public/v1/my/orders/create', orderInfo)
				if (res.meta.status !== 200) return uni.$showMsg('创建订单失败！')
				const orderNumber = res.message.order_number
				const {
					data: res2
				} = await uni.$http.post('/api/public/v1/my/orders/req_unifiedorder', {
					order_number: orderNumber
				})
				// 2.2 预付订单生成失败
				if (res2.meta.status !== 200) return uni.$showError('预付订单生成失败！')
				// 2.3 得到订单支付相关的必要参数
				const payInfo = res2.message.pay
				const [err, succ] = await uni.requestPayment(payInfo)
				// 3.2 未完成支付
				if (err) return uni.$showMsg('订单未支付！')
				// 3.3 完成了支付，进一步查询支付的结果
				const {
					data: res3
				} = await uni.$http.post('/api/public/v1/my/orders/chkOrder', {
					order_number: orderNumber
				})
				// 3.4 检测到订单未支付
				if (res3.meta.status !== 200) return uni.$showMsg('订单未支付！')
				// 3.5 检测到订单支付完成
				uni.showToast({
					title: '支付完成！',
					icon: 'success'
				})
			}
		}
	}
</script>

<style lang="scss">
	.my-settle-container {
		position: fixed;
		bottom: 0;
		left: 0;
		width: 100%;
		height: 50px;
		background-color: white;
		display: flex;
		justify-content: space-between;
		align-items: center;
		font-size: 14px;
		padding-left: 5px;
		z-index: 99;
		box-sizing: border-box;

		.radio {
			display: flex;
			align-items: center;
		}

		.amount-box {
			.amount {
				color: #c00000;
				font-weight: bold;
			}
		}

		.btn-settle {
			background-color: #c00000;
			height: 50px;
			line-height: 50px;
			color: white;
			padding: 0 10px;
			min-width: 100px;
			text-align: center;
		}

	}
</style>
